Water purification unit



FIG. 1 is a front view of a water purification unit showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front view of an alternative embodiment of a water purification unit showing the new design;

FIG. 8 is a top plan view of the unit of FIG. 7;

FIG. 9 is a right side elevational view of the unit of FIG. 7;

FIG. 10 is a left side elevational view of the unit of FIG. 7;

FIG. 11 is a rear elevational view of the unit of FIG. 7; and,

FIG. 12 is a bottom plan view of the unit of FIG. 7. 

The ornamental design for a water purification unit, as shown and described. 